Came across these on another site up for bidding and could probably be had at a low cost...but not sure of their authenticity...let me know your opinions please.....(hopefully i attached the pics correctly)

I would never bid on high end cards like that without them being graded. Obviously grading/authenticating is not fool proof but the chances are much smaller that I'm going to get a fake. 99% of collector's are going to have them graded because they will get a much bigger return.